lvl for construction walking board beam Size:3900/4900*225*38/39/40mm Glue ... 5mm MC:12% lvl for construction walking board beam 1.LVL--Laminated Veneer Lumber LVL is the ... in many fields, such as construction template parts, construction beam, carriage board, furniture, flooring, wood keel, packaging ... strength of the product is three times the same size solid wood products, and more suitable for load ...